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  • Title: Detection of HLA-DRw (Ia-like) antigens on human T lymphocytes grown in tissue culture.
    Author: Metzgar RS, Bertoglio J, Anderson JK, Bonnard GD, Ruscetti FW.
    Journal: J Immunol; 1979 Mar; 122(3):949-53. PubMed ID: 87422.
    Abstract:
    Human T lymphocytes that proliferate in the presence of conditioned medium from PHA-stimulated allogeneic peripheral blood cells were shown to express IPA antigens after the 8th culture day. Ia antigens as detected by xenogeneic antisera were present on 80 to 90% of the cultured cells which were also strongly reactive with xenogeneic antisera defining a human T cell antigen and formed E rosettes. Control cultures with PHA or no conditioned medium expressed T cell but not Ia antigens. These cultured T cells also express the same HLA-DRw determinants as the B cells of the donor they were derived from. Absorption of xenogeneic Ia, and HLA-DRw alloantisera with cultured T cells completely removed the reactivity of these sera for enriched peripheral blood B lymphocytes from normal donors.
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